The act of slapping a woman/man in the face with the penis after it has been inserted into their anus. The connotation 'Doowop' comes from the double meaning of the words 'scat' and 'skat' one meaning a style of jazz singing and one meaning sexual practises involving feacal matter.

'She was being a right cocky cunt, so I had to give her a couple of Doowop Gunslingers to sort the whore out.'